Which of the following best identifies a client experiencing defensive client behavior?

The identification of defensive client behavior is closely linked to how a client responds to feedback or confrontation about their actions or circumstances. Excessive justification of behaviors reflects a defensive mechanism that individuals use to protect their self-esteem or to avoid taking responsibility for their actions. When a client excessively rationalizes or explains their behavior, it often indicates an underlying discomfort with accepting criticism or facing the reality of their situation. This need to justify actions can be a sign that they are feeling threatened or vulnerable, leading to a defensive stance in their communication.

The other options present behaviors that may reflect withdrawal or avoidance but do not capture the same essence of active defensiveness. For instance, isolation from peers signifies withdrawal and might indicate feelings of sadness or a desire to escape, rather than an active defense mechanism. Frequent excuses to avoid confrontation can show a desire to evade conflict but lack the overt need to justify oneself, which can be a more passive response. Describing situations in a non-confrontational manner can indicate a coping strategy aimed at maintaining harmony rather than a defensive behavior. Thus, excessive justification is the most representative of defensive behavior, highlighting the individual's attempt to navigate discomfort in interpersonal interactions.